Explanation:

Geotagging- It is the process of adding geographical identification like latitude and longitude to various media such as a photo or video. Geotagging can help users find a wide variety of location-specific information from a device. It provides users the location of the content of a given picture.
As part of its effort to plug the loopholes in the system, the government will adopt various technology options, including the latest, 'geo tagging,' a process of adding geographical information to various media in the form of metadata (a text document contains information about the document).
Why is Geotagging important?
 Several assets are created in the states under various schemes of the Ministry of Agriculture.  Under RKVY also, states have been utilising substantial amount of funds for creation of infrastructure/assets in agriculture and allied sectors such as soil testing labs, pesticide testing labs,  bio fertiliser setting units, custom hiring centres,  vaccine production units , veterinary diagnosis labs , dispensaries , milk collection centres , fish production units, godowns, cold storage, shade nets, pandals for vegetable cultivation   etc. Monitoring of such wide spread activities is of paramount importance to states and Government of India to understand flow of funds, inventorising the assets, bringing in transparency, planning of assets for future, and finally informing the farmers about the facilities available.
PM on several occasions emphasised on use of technology for reporting of assets created through geo-tagging (example: drought review meeting held on 14/ 05/2016).Finance Minister also highlighted monitoring of MGNREGA assets through Geotagging in his budget speech.
Geotagging for monitoring of assets is already started in Ministry of Rural Development for MGNREGA and Department of Land Resources for monitoring of watershed activities in the states. Postal department has also geotagged the post offices using NRSC Bhuvan Platform.
Geomapping-a  visual representation of the geographical location of geotagged assets  layered on top of map or satellite imagery.
The related term geocoding refers to the process of taking non-coordinate based geographical identifiers, such as a street address, and finding associated geographic coordinates (or vice versa for reverse geocoding). Such techniques can be used together with geotagging to provide alternative search techniques.
A geographic information system (GIS) is a system designed to capture, store, manipulate, analyze, manage, and present spatial or geographic data.